Failure detection and fencing in a computing system
US8352798B2 · kind B2 · utility
2Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Jan 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0715
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, computer program product, and system for detecting and fencing off a failed entity instance so that failover time in the computing system is reduced. Upon detection of a failed entity, for example a failed process, a signal handler invokes an operating system interface to fence off the failed instance from modifying its persistent state, so that the entity may be re-instantiated prior to termination of the failed instance. This approach reduces failover time and eliminates split-brain problems without compromising access to the failed instance to obtain diagnostic information, core dumps, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.